Festo 152962 Manual De Instrucciones página 24

Hydraulic power packs with 5 l tank
Hydraulic safety

Depressurize the system!
– Switch off the hydraulic unit before working on the circuit.
– Check the system using pressure gauges to make sure that the entire circuit is fully depressurized.
– Please note that energy may be stored in reservoirs, cylinders with spring load and
cylinders with weight load. Further information on this issue is
available in the data sheets and operating instructions included with the components.

When filled with oil, the power unit must always be positioned such that the oil-filler plug with vent filter
(red) is above the oil fill-level.

The power unit must be operated with the oil-filler plug with vent filter (rot).
Caution
The tank may burst if operated without the oil-filler plug with vent filter (rot).

Check the oil level at regular intervals. Unlubricated operation of the pump is not permitted!

When devices are started up initially, the oil level in the tank drops because the devices and hoses are
filled. If oil is no longer visible in the sight glass, hydraulic oil must be added until the fill-level can once
again be seen in the sight glass (7).

Risk of injury due to oil temperatures greater than 50° C!
Check the temperature at the temperature measuring tape (8). Escaping hydraulic fluid with a
temperature of greater than 50° C may result in burns or scalding.

If the electric motor's motor protection switch is tripped, the cause must be determined and eliminated.
The motor can be started back up again after allowing it to cool down.

If no discharge measuring container is connected to the corresponding connection (15), it must be
ensured that the connection is sealed with the protective sheath (as is also the case upon delivery).

The oil level drops considerably when measurements are performed with the discharge measuring
container and when the pressure accumulator is filled. The oil level must therefore only be checked
when the discharge measuring container and the pressure accumulator are empty.

If the power unit is moved, carried or pushed onto a trolley, the oil sloshes around in the tank. As a
result, a small amount of oil can escape via the vent filter in a time-delayed fashion.

Connecting more than one hydraulic unit in order to increase the delivery rate is not possible because
the varying fill-levels in the tanks cannot equalize themselves.

The tank is emptied via the oil drain plug on the back of the oil tank. When the plug is opened, the
reducer fitting must be prevented from turning. Catch and dispose of the oil.
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